If your workday mostly involves sitting at a desk, you’ve probably heard that taking regular movement breaks is beneficial for your health. A new study from the University of Otago—Ōtākou Whakaihu Waka now provides specific guidance on how often to do so. The research indicates that taking a quick walk every 20 minutes may be the most effective way to lower blood sugar and insulin levels after meals.
Today’s lifestyle involves much more sitting than in the past. Many spend hours working at computers, prefer driving over walking, and unwind by watching TV or using their phones and tablets. While these activities seem harmless, prolonged periods of sitting without movement have been linked to increased risks of heart disease, type 2 diabetes, obesity, and certain cancers. Scientists believe that being sedentary for too long slows down the body’s ability to process sugar and fats, which over time could compromise health.
Blood sugar refers to the glucose level in your blood. Naturally, blood sugar spikes after eating, prompting the body to release insulin—a hormone that moves glucose from the bloodstream into cells for energy. Sitting for extended periods keeps muscles inactive, making it harder for the body to effectively utilize glucose. Over time, this inefficiency can lead to insulin resistance and raise the risk of developing type 2 diabetes.
The recent study, published in Obesity Reviews, combined findings from 53 prior research projects exploring how activity breaks influence blood sugar and insulin levels. Instead of relying on a single experiment, the reviewers analyzed high-quality evidence to determine the most effective patterns. Lead researcher Dr. Jen Gale, who conducted this as part of her PhD in Human Nutrition, explained that the evidence clearly shows that breaking up periods of sitting with movement brings health benefits. Among various strategies, taking a quick walking break every 20 minutes resulted in the greatest reductions in blood sugar and insulin after meals.
The study also found that these benefits are even more pronounced for individuals living with type 2 diabetes or those with higher body weights. These groups often find it more challenging to control blood sugar, so frequent movement can offer additional support.
While the review didn’t specify the ideal length for each break, most studies included walks lasting just two to three minutes. This suggests you don’t need to commit to lengthy exercise sessions during the day. Simply standing up, strolling around the office, climbing a few stairs, or taking a short walk can make a meaningful difference.
Senior author Dr. Meredith Peddie notes that many people might find the idea of a break every 20 minutes hard to maintain. Many workers say that every 30, 45, or even 60 minutes seems more doable. However, the evidence suggests that longer intervals are less effective at reducing blood sugar levels. Although walking yields the best results, other gentle activities such as stretching or even dancing could also be beneficial—though more research is needed because these alternatives haven’t been studied as extensively.
Most of the existing studies were done under laboratory conditions, which may not perfectly reflect everyday life, where work schedules can make frequent movement challenging. Future research aims to find practical ways for people to incorporate regular activity breaks into their routines.
This evidence reinforces the idea that small changes in lifestyle can significantly impact long-term health. Since the review synthesized data from 53 previous studies, its conclusions carry more weight than any single experiment. Nevertheless, much of this research was conducted in controlled settings, so further studies are needed to determine how people can realistically follow these recommendations at work. Nonetheless, taking a brief walk every 20 minutes appears to be a simple, low-cost habit that can improve blood sugar management and potentially lower the risk of chronic diseases.
For those interested in diabetes prevention and management, exploring topics like Vitamin D’s role in type 2 diabetes and understanding which fruits are better for people with diabetes can be helpful. Additional recent studies suggest that low-calorie diets may reverse diabetes and that certain vitamins might help prevent complications in diabetics.
Source: University of Otago—Ōtākou Whakaihu Waka.
